Boiler-cleaner



Patented Sept. I3, |898.

J. J. SHALL.

suman CLEANER.

(Application filed Dec. 3, 1897.)

(No Model.)

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No. 610.703. Patented Sept. I3, i898.

J. J. GRALL. v BDILER CLEANER.

(Application led Dec. 3, 1897.)

Sheet 2.4

2 Sheets (No Model) llnrrrnn Frn'rns .IOIIN J. GRALL, OF OI-IAUNCEY,MISSOURI.

BOlLER-CLEANER.

SPECIFICATION forming part of Lettersratent No. 610,703, dated september13, 189e. Application filed December d, 1897. vSerial No. 660,657. (Nomodel.)

To all whom, it may concern.-

Be it known that I, JOHN J. GRALL, residing at Chauncey, in the countyof Camden and State of Missouri, have invented a new and usefulBoiler-Cleaner, of which the following is a specification.

This invention relates to improvements in steam-boiler cleaners, and hasfor its object to provide means in permanent attachment with a boilerwhereby the dirt, calcined accumulations, scales, or other depositswithin the lowerportion of the boiler may be scraped off and blown fromthe same, which operation may be effected at any time, even' when theboiler is in use'with considerable pressure exerted. 1

My improved device provides a convenient and inexpensive attachment,simple inv operation and not likely to get outof order and which may beconstructed with the boiler in process of manufacture or applied at verymoderate expense to existing boilers.

In the drawings herewith, forming part of this specification, in Awhichlike parts are designated by similar letters of reference, Figure l is aside elevation of a boiler equipped with my improved cleaner, a portionof the cover being broken away. Fig. 2 is a side'elevation of thecleaner, partly in section, and the end wall of the boiler, also insection. Fig.` 3 is an end elevation of the scraper or brush hereinafterdescribed. Fig. 4 is a side elevation of my complete cleaner, showingmanner of its attachment to the end wall of boiler, the latter being invertical section. Fig. 5 is a longitudinal section of that shown in Fig.4c, with an additional outer connection and with globevalve, theadditional portion being` in side elevation. Figs. 6, 7, and S areperspective details of my invention, hereinafter fully described. y.

In the construction of my improved boilercleaner I provide first astui'iing-box nipple A, provided with a screw-threaded portion B,adapted to register with a screw-threaded aperture through the mud-headC of the boiler O, the said mud-head being located adjacent to thebottom portion of the boiler. Upon the said nipple A, within the boilerC and bearing closely against the inner surface of the boiler, I providean annular shoulder D, said shoulder being provided withinwardly-projected of said nipple A is screw-threaded, as shown, and isalso provided' intermediately with a cock F. V

I next provide a sliding sleeve consisting of an inner section GV andouter section G, the meeting ends being screw-threaded, so as to besecurely joined together, presenting when so joined an evencircumferential surface. Adjacent to the inner end of the section G, Iprovide an annular shoulder G2 and beyond said shoulder an innerscrew-threaded end G2. Adjacent to the outer endof section G', I providea globe or other valve G4, and beyond said valve I provide 'ascrew-threaded end G5.

Adapted for attachment to the screwthreaded end G3 of thesleeve-.section G, I provide a sliding valve-block I-I, said valve-blockprovided with an upwardly-curved recess of the same diameter as the saidsleeve-sections G and G. Upon the'bottom of said block H, I provide aplate H', secured by means of binding-screws H2 in such a position as topermit the action of a gate-valve H3, the aperture of said valve beingof the saine diameter as the inner diameter ofsleevesG and G. Upon theouter end of said gatevalveIlS, I provide a catch-head H4. lScrew-threaded Vinto the aperture in plate II', I provide a` dependingtube K, which at its lower end is screw-threaded into a recessed slidingfoot K. l p Extending through the wall of section G of the slidingsleeve I provide an aperture F, which is in alinement with the inner endof the cock F and registers therewith when said sliding section G hasbeen drawn outwardly as far as the shoulder G2 will allow. Upon theperiphery of said shoulder G2, I provide a beveled lu g I, which bymeans of its engagement with the slotted -lug E of shoulder D holdssection G in its place.

. I next provide'abr'ush-head L, adapted to be secured uponthe inner endof the sliding valve-block II by means of the binding-screw L', passingthrough said brush-head and a washer L2 into the sliding valve-.block H.Depending from said brush-head Iprovide a wire brush M, its lower edgebein gof the same curvature as the inner surface of vthe boiler C.

I next provide upon the shoulder G2 a beveled lug I, as shown in Fig. 7.The purpose y slotted catch-lugs Ejand FY. The outer end IOO of said lugis to secure the end sleeve-section G to the nipple A by being engagedby the slotted lug E,projecting from the shoulder D of the nipple A. Theparts having been constructed as herein described, the operation of mydevice is as follows:

The stuffing-box nipple A having been securely fastened within themud-head C and v the sleeve-section G projected therethrough,

the section G is connected with said section l, the valve-block H in theinterior of the boiler C being in screw-threaded connection with theinner end of said section G.

' The valve H3 when opened by being drawn out will stay open until thehead H4 comes in contact with the shoulder D on the nipple A. The valveH3 is opened by rotating the head H to the left to connect the head H4with the slotted lug E. The section G must be pressed until everythingstops, as it must, as the valve can only move a limited distance, andthen the section G must be rotated in the opposite direction, which willdisconnect the head H1 from the lug E', the foot K being in a verticalposition. The valve G4 is now opened and the cleaner reciprocated in andout, the blowing continuing during this operation, blowing out thematter stirred up by the comb-teeth M.

To reciprocate the cleaner, the section Gl is grasped by the hands, ragsor like protection being used, or may be clamped by wooden jaws or in ahand-vise.

In order to provide means for discharging the water and steam remainingin the sections G and G', I provide a supplemental cock F, through whichsuch discharges may be made to occur after the valve H3 is closed. Theaperture F in the sleeve G will register with the cock F when theshoulder G2 meets the inner end of the nipple A. In such position thesection G may be removed and the cap N applied, as shown in Fig. 2, saidcap being provided with screw-threads engaging the outer screw-threadedsurface of the nipple A for the purpose of preventing any leakage shouldthe gate-valve H3 or shoulder G2 fail to fit steam-tight on the end ofthe nipple A. An ordinary stuffing-box A is provided, as shown, to makea steam-tight joint between nipple A and sections G G". The outer end ofthe section G', beyond the globevalve G4, is screw-threaded in order topermit the attachment of a conducting-pipe or hose, if desired.

In Fig. 6 I have reproduced in detail the nipple A. In Fig. 7 is shown adetail view of the sleeve G, and in Fig. 8 is shown a detail view of thegate-valve H3.

The brush-head L is not bound rigidly upon the valve-block H, butoscillates freely thereon in order that said valve-block and the foot Kmay be rotated without rotating said brush-head,as it would beimpossible,owin g to the length of the brush, to rotate the same withinthe boiler, the lower end of the brush coming into contact with thebottom of the boiler. I do not confine myself to the brush hereindescribed, but may substitute therefor a solid scraper-plate or anyother species of scraper or brush to effect the same purpose.

One of the chief advantages found in my device is that the communicationwith the interior of the boiler may be at any time cut off by theoperation of the valve H3 without depending upon the exterior valve, thesaid action being effected by the same drawing outwardly of the saidsection G', after which said section is rotated until the valve-head H4has been gripped by the slotted lug E'. When the blow-out is thusterminated and the water and steam exhausted through the'cock F, thesection G will soon cool, so as to permit its detachment from section G,after which the cap M is applied. Another advantage of my device isfound in the fact it has no small delicate parts liable to becomedetached within or without the boiler, and on this account it will befound to be exceedingly durable, as well as effectual.

Having thus described my invention, what I claim as new, and desire tosecure by means of Letters Patent, is-

l. The combination with a steam-boiler cleaner, of a valve-block, asliding foot secured thereto, a brush-head loosely pivoted thereon, adepending brush or scraper secured to said head, a gate-valve operatinglongitudinally upon said block between the bottom of same and aretaining-plate, a nipple screwthreaded through the mud-head of theboiler, said nipple being provided Vwith an outer screw-threaded end andan inner shoulder, a sliding tubular sleeve projected through saidnipple having its inner end eXteriorly and its outer end interiorlyscrew-threaded and provided with a shoulder next the inner end, acatch-head upon said gate-valve adapted to be engaged by a slotted lugupon the annular shoulder of said nipple, a beveled lug upon theshoulder of the said sliding sleeve adapted to be engaged by anotherslotted lug upon the shoulder of said nipple, an outer sleeve havingboth its ends screw-threaded and adapted for attachment to saidfirst-mentioned sleeve, a valve intercepting said outer sleeve, and asupplemental valve or cock in said nipple adapted to register with anaperture in the inner or first-mentioned sliding sleeve when the same isin its most outwardly-drawn position, all substantially as herein shownand set forth.

2. The combination with a steam-boiler, of a cleaner therefor,consisting of a nipple screw-threaded through the mud-head of theboiler, a sliding tubular sleeve projected through said nipple, anannular shoulder adjacent to the inner end thereof, a screwthreadedinner end having secured thereto a valve-block, a gate-valve securedwithin said block provided with a catch-head, a slotted lug projectedfrom the inner portion of said nipple adapted to engage the catch-headof said valve when the said valve-block is ro- ICO IIO

tated by means of the outwardly-projected sleeve, a beveled lu g formedupon the periphery of the annular shoulder of said sleeve adapted to beengaged by another slotted lug on the inner portion of the saidnipple,where by the Valve-block is locked in an abutting positionagainst the inner end of the nipple, a recessed sliding foot secured tosaid Valveblock, an oscillating brush-head also secured upon the innerend of said block, a depending` brush, an outer screw-threaded tubularsleeve in connection with that first herein mentioned, a globe or otherValve intercepting the saine adjacent to its outer screWthreaded end,and an auxiliary exhaust-cock leading through said nipple adapted toregister With an aperture in the iirst-nientioned sliding sleeve Whenthe saine is in its inost outwardly-drawn position, the Wholeconstructed,arranged7 and adapted for operation substantially as hereinshown and set forth.

3. The combination with a steam-boiler, of a cleaning device therefor,consisting of a nipple A, projected through a head C, a sliding sleeveG, a valve-block H secured thereon a gate-Valve H3, an oscillatingbrush-head L, a brush or scraper M, means as shown for operating saidValve consisting of catch-head HLl coaeting with slotted lug E', meansfor securing said Valve-block and nipple together consisting of lug Icoaeting with slotted lug E, an outer sleeve G', a globe-valve G4, anexhaust-cock F adapted to register with an aperture F when said sleeveGis in a certain position, the Whole constructed, arranged, and adaptedto operate substantially as and for the purpose herein set forth.

JOHN J. GRALL.

iVitnesses:

A. B. GRALL, C. C. DRAPER.

